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Eupercaria/misc (Various families in series Eupercaria) >
Moronidae (Temperate basses)
Etymology: saxatilis: saxatilis --- living among rocks (Ref. 1998).
More on author: Walbaum.
Environment: milieu / climate zone / depth range / distribution range
Ökologie
seewasser; süßwasser; brackwasser demersal; anadrom (Ref. 51243); tiefenbereich 30 - ? m (Ref. 2850). Temperate; 8°C - 25°C (Ref. 47172); 49°N - 27°N, 94°W - 59°W (Ref. 86798)
Western Atlantic: St. Lawrence River in Quebec, Canada to Lake Pontchartrain in Louisiana; south in Florida, USA to St. Johns and Suwannee river drainages.
Size / Gewicht / Alter
Maturity: Lm ? range ? - ? cm
Max length : 200 cm TL Männchen/unbestimmt; (Ref. 86798); common length : 120 cm TL Männchen/unbestimmt; (Ref. 9988); max. veröff. Gewicht: 57.0 kg (Ref. 2850); max. veröff. Alter: 30 Jahre (Ref. 1468)
Rückenflossenstacheln (insgesamt) : 9 - 11; Rückenflossenweichstrahlen (insgesamt) : 10 - 13; Afterflossenstacheln: 3; Afterflossenweichstrahlen: 7 - 13.
Inhabit coastal waters and are commonly found in bays but may enter rivers in the spring to spawn (Ref. 2850). Some populations are landlocked (Ref. 7251). Voracious and opportunistic feeder (Ref. 5951). Larvae feed on zooplankton; juveniles take in small shrimps and other crustaceans, annelid worms, and insects (Ref. 1998, 10294); adults feed on a wide variety of fishes (alewives, herring, smelt, eels, flounders, mummichogs, rock gunnels, sand lance, silver hake and silversides (Ref. 5951)) and invertebrates (squid, crabs, sea worms and amphipods (Ref. 5951)), mainly crustaceans (Ref. 1998). Feeding ceases shortly before spawning (Ref. 1998). Utilized fresh and eaten broiled and baked (Ref. 9988).
Move into fresh or brackish water to spawn (Ref. 39467). Females spawn more than once in a season, but they don't necessarily spawn every year (Ref. 1998).
Heemstra, P.C., 1995. Moronidae. Lubinas. p. 1289-1292. In W. Fischer, F. Krupp, W. Schneider, C. Sommer, K.E. Carpenter and V. Niem (eds.) Guia FAO para Identification de Especies para lo Fines de la Pesca. Pacifico Centro-Oriental. 3 Vols. FAO, Rome. (Ref. 9320)
IUCN Rote Liste Status (Ref. 130435: Version 2024-1)
Bedrohung für Menschen
Harmless
Nutzung durch Menschen
Fischereien: weniger kommerziell; Aquakultur: kommerziell; Sportfisch: ja
Tools
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Estimates based on models
Preferred temperature (Ref.
123201): 1 - 23.5, mean 9.3 °C (based on 22 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5781 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00933 (0.00745 - 0.01169), b=3.05 (2.98 - 3.12), in cm total length, based on LWR estimates for this species (Ref.
93245).
Trophic level (Ref.
69278): 4.7 ±0.2 se; based on diet studies.
Widerstandsfähigkeit (Ref.
120179): niedrig, Verdopplung der Population dauert 4,5 - 14 Jahre. (K=0.12; tm=5-7; tmax=30; Fec=14,000).
Prior r = 0.31, 95% CL = 0.20 - 0.46, Based on 2 full stock assessments.
Fishing Vulnerability (Ref.
59153): High vulnerability (61 of 100).
Climate Vulnerability (Ref.
125649): High vulnerability (61 of 100).
Nutrients (Ref.
124155): Calcium = 14.4 [7.1, 30.8] mg/100g; Iron = 0.291 [0.146, 0.542] mg/100g; Protein = 19.4 [18.5, 20.4] %; Omega3 = 0.583 [0.331, 1.065] g/100g; Selenium = 16.5 [7.6, 34.2] μg/100g; VitaminA = 8.61 [2.38, 30.88] μg/100g; Zinc = 0.307 [0.217, 0.451] mg/100g (wet weight); based on
nutrient studies.
